Protectosil CHEM-TRETE BSM 400 brings you the next generation in silane ... applied if the surface temperature is below 20°F (-7°C) or above 100°F (40°C), ...
over 20 years. Our experience in these technologies is unsurpassed. Chem-TreteBSM 400: Pure solvent-free silane for- mulation designed for brick masonry.